Millimeter \Mil"li*me`ter\, Millimetre \Mil"li*me`tre\, n. [F.
millim[8a]tre; milli- milli- + m[8a]tre. See 3d {Meter}.]
A lineal measure in the metric system, containing the
thousandth part of a meter; equal to .03937 of an inch. See
3d {Meter}.